Auto-import of global symbols

[fwcd]

Show all global (including unimported) symbols in code completion lists and import them automatically when chosen (similar to vscode-java). This would require querying the classpath without slowing down the language server too much.

[fwcd]

An experimental, "proof-of-concept" implementation of this issue is now on a separate branch. There are still a few major problems though with this solution:

• It is very slow (~20 seconds per completion list in a basic Kotlin project without dependencies), in particular due to the lack of caching/indexing
• It does not automatically import any of the resolved symbols yet
• It does not prioritize the current scope

[vn7n24fzkq]

@fwcd
Hi. Dose anyone focus on this issue?
Is there anything I can help with?

[ygrenzinger]

Any news ? Not really sure if I could help but is there some possible solution to dev something viable ?

Very cumbersome to work without auto import :)

[ianmichell]

@fwcd I would suggest having a look at using something like Lucene. It's a pretty efficient indexing library, that could reduce lookups down to ms. It would need to be periodically triggered when there are changes to dependencies or code, but would help massively. I'm not sure what vscode uses underneath for its indexing though.

[HiPhish]

Hi, I want to try helping with this issue, since it's very important to me. The problem is, I don't think I can do it on my own. Do you have a recommendation for what needs to be done and where to start digging? I imagine the first task would be to get a list of symbols in the first place, then we can investigate how to cache the result for later use and how to know when to update that cache.

[ianmichell]

Hi, I want to try helping with this issue, since it's very important to me. The problem is, I don't think I can do it on my own. Do you have a recommendation for what needs to be done and where to start digging? I imagine the first task would be to get a list of symbols in the first place, then we can investigate how to cache the result for later use and how to know when to update that cache.

Code is quite confusing, not a lot in the way of comments from what I have read, hard to know the best branch (I'd suggest fork and start from master), then all you need to do is try debugging your way through it.

You'd need to get all the relevant symbols from the class file you're in, usually the best approach for this is to index the project and all the relevant dependencies and their classes.